Mechanics

CHECK ENGINE LIGHT

2001 BMW 330ci • 6 cylinder 2WD • 147 miles

2001 330ci check engine light is on. Is that a big problem or just an o2 sensor
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Jckman40car
February 23, 2011.



Check engine light on
Have the computer scanned for code/s-you have a problem within the engine management system that caused the CEL to turn on-This is your starting point of diagnosis, finding out what's going on.

Go to Autozone they'll scan it for free-

Rasmataz
Feb 23, 2011.
The o2 sensor was just replaced is it possible that its not resetting. Do u need to drive it a little?

Tiny
Jckman40car
Feb 24, 2011.
Raz is correct, have the scan performed and it will tell you the next step. Driving it wont change the fact that the light is on.

Dr. Hagerty
Feb 24, 2011.